No one I believe. I just ordered 'Duty Carry Action Enhancment Kit', Ram and the FRE from Brownells. Specify USPS. Shipping was $5.95. I chose the Duty/Carry over the Competition as it is for my wife. I measured stock pull at 6.5 lbs. It's gritty and has to much overtravel. This will smooth out the take-up, reduce the overtravel and provide a very positive reset. Trigger pull will be about 5.5 lbs. If you leave the stock sear spring in it will be about 5.0 lbs. The carry kit gives you about 3.0 lbs. If you have a thumb safety or 'the lock' you cannot use the RAM. Here's a list of all the parts and install vids:
h ttps://apextactical.com/store/product-list.php?pg1-cid11.html
h ttp://www.youtube.com/watch?v=FHr-IyejH7g
h ttp://www.youtube.com/watch?v=q8J6LKkuHDI&feature=related
h ttp://www.youtube.com/watch?v=kEaVMxkp8PM&feature=related
h ttp://www.youtube.com/watch?v=BjIGPqh083E
h ttp://www.youtube.com/watch?v=_JuHrM2vzco&feature=channel
h ttp://www.youtube.com/watch?v=B6nebJaORy0&feature=related